Improvement in chills for casting mold-boards



JAMES OLIVER, OF SOUTH BEND, INDIANA.

IMPROVEMENT'IN CHILLS FOR CASTING MGLD-BQARDS.

Specification forming part of Letters Patent No. lli, dated March 3,i874; application iled February 3, 1874.

To all whom it may concern:

Be it known that I, .Lunas OLIVER, or South Bend, in the county ot' St.Joseph and State ot' Indiana, haveinvented certain new. and usefulImprovements in Ohills for Casting Mold-Boards; and I do hereby declarethat the following is a full, clear, and exact description thereot',that will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompany ing drawingsand to the letters ot' reference marked thereon, which form a part ot'-this specilication, in which- Figure 1 represents a top view of the copeand water-chamber. Fig. 2 represents a bottom view 'ot' the cope andchill. Fig. 3 represents a section through the line .v0 x, Fig. 2.

This invention is an improvement on patent granted to me May 2, 1871, inwhich a pan or chamber is provided, forming a part of the chill, saidchill being provided with grooves or creases on its face to conduct awaythe steam and gas arising from the het metal coming in contact with thesand and chill, thus allowing the flask to remain in a horizontalposition during the cperation of casting, while the pan or chamber isfilled with and retains the hot water, and it consists in theconstruction of the pan or chamber, tl1e--bottom of which forms thechill, providing the same with arms, the outer ends of which have asuitable shape or form, in order to be attached to the frame of thecope, so that the chill and pan or chamber are rigidly connected to thecope, and at the same time an open space is left in the top ot' thecope, extending to the bottom ot' the drag between the outside of thepan or chamber and the frame of the cope, thus allowing the sand to berammed from the top of thecope,

and providing a convenience in forming the opening through which themolten metal is poured into the mold. I

A represents the pan or not-water chamber, having a shapecorres''ionding with the outline of the mold-board, and the under sideofthe bottom ot' said pau forms the chill, the back of which is providedwith grooves to allow the steam and gas to pass ott' when casting, andalso provided with pertorations cfor the insertion ot' the dies d, whichform the bolt-holes in the cast chilled mold-board- Extending out wardfrom the pan A, and cast thereon, are arms clgthe outer ends b ot whichare of suitable form to t the cope-frame B, and be secured thereto byscrews or bolts, thus holding the pan rigid with the cope-frame, andleaving' the open sandspaee O between the outside ot' the pan andcope-frame, allowing the sand to be rammed from the top, and allowingtheopen ing I) to be made in any convenient place. The opening Dcommunicates with the gate e, through which the molten metal is pouredinto the mold. The opening D and gate e are formed in the sand O. Erepresents the pattern resting on the face ot' the chill, which is madein the form of the mold-board to be cast. F represents the drag of theusual construetion, the space O being filled with sand.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The open pan A, the bottom of which forms the chill, provided with armsa, in combination with the copefraine B, substantially'as and for thepurpose herein specified.

In testimony that I claim the toregoing I have hereunto set my hand.

Witnessesz JAB'IES OLIVER.

C. El. WATSON, H. @..Soorr

